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Home > AC > Chapter 3 > Lesson 3.2.2 > Problem 3-85

3-85.

For each equation, a possible solution is given. Check to see if the given solution is correct.

  1. If , then does ?

    Substitute the possible answer for .

    If the numbers on both sides of the equation sign are the same once simplified, then the possible answer is correct.


    Yes

  2. If , then does ?

    Follow the steps in part (a).

    No

  3. If , then does ?

    Follow the steps in part (a).

  4. If , then does ?

    How does the negative in front of the parentheses change what is inside?

    Follow the steps in part (a).